gcc/testsuite/gfortran.dg/null_5.f90

   1 ! { dg-do compile }
   2 ! { dg-options "-std=f95" }
   3 !
   4 ! PR fortran/34547
   5 ! PR fortran/50375
   6
   7 subroutine test_PR50375_1 ()
   8   ! Contributed by Vittorio Zecca
   9   interface gen1
  10     subroutine s11 (pi)
  11       integer, pointer :: pi
  12     end subroutine
  13     subroutine s12 (pr)
  14       real, pointer :: pr
  15     end subroutine
  16   end interface
  17   call gen1 (null ()) ! { dg-error "MOLD= required in NULL|There is no specific subroutine" }
  18 end subroutine test_PR50375_1
  19
  20 subroutine test_PR50375_2 ()
  21   interface gen2
  22     subroutine s21 (pi)
  23       integer, pointer :: pi
  24     end subroutine
  25     subroutine s22 (pr)
  26       real, optional :: pr
  27     end subroutine
  28   end interface
  29   call gen2 (null ()) ! OK in F95/F2003 (but not in F2008)
  30 end subroutine test_PR50375_2
  31
  32 subroutine test_PR34547_1 ()
  33   call proc (null ()) ! { dg-error "MOLD argument to NULL required" }
  34 end subroutine test_PR34547_1
  35
  36 subroutine test_PR34547_2 ()
  37   print *, null () ! { dg-error "Invalid context" }
  38 end subroutine test_PR34547_2
  39
  40 subroutine test_PR34547_3 ()
  41   integer, allocatable :: i(:)
  42   print *, NULL(i) ! { dg-error "Fortran 2003: NULL intrinsic with allocatable MOLD" }
  43 end subroutine test_PR34547_3